SWCU194 March 2023 CC1314R10 , CC1354P10 , CC1354R10 , CC2674P10 , CC2674R10
When the MCU domain is active, all AUX modules are both accessible with minimum latency and functional to an MCU master, independent of the AUX clock and power management. Hence, the System CPU application has no need to configure the AUX operational mode to use a peripheral. The System CPU application cannot use an AUX peripheral in Standby mode (power mode defined in TI's Power Manager), but the AUX peripheral can create a wakeup event to the System CPU from this power mode. The Sensor Controller Engine can however run when the rest of the system is in Standby, and can thus be used to minimize current consumption.
TI's Power Manager requests the Power-Down operational mode (see Figure 20-2), by default.